Finding the Fourth Proportional to 390,526.56, 585,579.18 and 177,178.05
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Solution
The fourth proportional to 390,526.56, 585,579.18 and 177,178.05 is: 265,671.50
Step by Step Solution
- Step 1: Write the proportion equation
390,526.56 : 585,579.18 = 177,178.05 : x - Step 2: Convert to fraction form
390,526.56/585,579.18 = 177,178.05/x - Step 3: Cross multiply
390,526.56x = 585,579.18 × 177,178.05 - Step 4: Simplify right side
390,526.56x = 103,751,777,233.00 - Step 5: Solve for x
x = 103,751,777,233.00/390,526.56 - Step 6: Final answer
x = 265,671.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.